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Microorganisms and Disease

Microorganisms and Disease
An important host defense of human beings is a dense resident microbiota associated with

lungs
bladder
vagina
uterus

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Microorganisms and Disease
Which of these cytokines is also known under the name cachectin?

Interleukin 2
None of these
Tumor necrosis factor (TNF)
Interferon gamma

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Microorganisms and Disease
Mucus helps in protecting against pathogens by

sequestering Iron
facilitating the growth of normal flora
blocking access and attachment of pathogens to mucosal surfaces
lowering the pH

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Microorganisms and Disease
Fatalities following influenza infection are usually due to the

bacterial superinfection
damage to the heart muscle
formation of granulomas in the lung
dehydration

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Microorganisms and Disease
The toxins produced by bacteria

interfere with physiological processes in the body
encourage bacterial reproduction
kill viruses
All of these

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Microorganisms and Disease
Which of the following statements is not true regarding Mycobacterium tuberculosis and/or the disease it causes?

The pathogen can live inside macrophages
Antibodies to the pathogen are protective
None of these
The pathogen contains mycolic acid in its cell wall

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